Specification Brand : uxcell BulletPoint1 : Product Name: Hollow Rivet; Material: Brass Plated, Metal BulletPoint2 : Weight: 19g; Package Content: 100(+/-2%) x Hollow Rivet BulletPoint3 : Main Color: Gold Tone BulletPoint4 : Overall Size: 6 x 5mm/0.24" x 0.2" (Max.D*H) BulletPoint5 : Hole Size: 4 x 4mm/0.16" x 0.16" (D*L) Color : Silver DriveSystem : Slotted ExteriorFinish : Black ExternallyAssignedProductIdentifier1 : 602451528746 ExternallyAssignedProductIdentifier2 : 0602451528746 ItemName : uxcell PCB Circuit Board Brass Plated 4x4mm Through Hole Rivets Hollow 100pcs ItemPackageDimensions_Height : 10.6 centimeters ItemPackageDimensions_Length : 1.1 centimeters ItemPackageDimensions_Width : 10 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : mechanical-control-cable-accessories Manufacturer : uxcell Material : Brass Plated, Metal Material1 : Nylon Material2 : Rubber MetalType1 : Aluminum MetalType2 : Carbon Steel ModelNumber : a16032800ux0873 MountingType : Corner Mount NumberOfItems : 3 PartNumber : a16032800ux0873 ProductDescription : Simply drill a hole slightly larger than the outside diameter of your via of choice and insert the via. Via can easily be ground down if required to the desired length and center punched on the shaft side of the circuit board to spread that side of the shaft. After this it can be soldered into place or whatever you might wish to do. Alternately, you may choose to even grind off the head and you will be left with an extremely discrete shaft only. Tip:If you wish to grind these down you can either use sandpaper or a rotary tool can be used with a sanding drum attachment (not included here ) !